Hyperloop One plans an underwater version of supersonic tube transportation

Imagine the Port of Los Angeles moved 10 miles off shore with ships docking at stations and cargo containers transported underwater from the coast via supersonic tubes. The coastal areas where the Port of Los Angeles used to take up miles of space has been transformed into spacious parks, residential areas, office complexes and beaches. That is the future envisioned by L.A.-based startup Hyperloop One that is developing the technology to make Elon Musk's dream of moving passengers and cargo at supersonic...